Filming has already started on the new run late last autumn and the precise relationship between the multi-companion set up has not been revealed.
But whatever their relationship, the feeling according to one production source is that the adventurers are a family – with Walsh’s character Graham taking a “parental” role.
“The first Doctor played by William Hartnell was a grandfather to Susan and he had the companions Ian and Barbara in these early adventures,” said a source. “Chris’s show will be very much its own thing but that is kind of the vibe.”
Another source added: “There is a feeling that the drama has been complicated by self-referential plotting at times and Chris wants his Doctor Who to be a show notable for its emotional intelligence.”
But it seems that his plans also involve a keen desire to restore its appeal as a family show, as noted by Chibnall’s friend and collaborator, the director James Strong.
“It used to be – and I stress this is my personal opinion – at the heart of the schedule, an unmissable family show and, for some reason, it’s slipped a bit from the national consciousness,” said Strong in the same piece.
“For me, when it goes towards storylines that are a little bit more for the fans, I think you can lose that general appeal. I think Chris is going to offer a slightly different take on what the show should be… I think Chris, essentially, writes emotional thrillers, and that’s perfect for that show.”
Jodie Whittaker’s very first episode in the BBC sci-fi series will be 65 minutes long, properly introducing the Thirteenth Doctor and her Tardis team before reverting to a shorter 50-minute format for the series’ nine subsequent instalments.
The Corporation has confirmed that the new series will air in the autumn – with many speculating that it will begin in October.
The Corporation also revealed a new logo for the show at the recent BBC Worldwide showcase.